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AI.XI.D.K1aFAA-S-ACS-25 · Nov 2023Knowledge

a. Instrument limitations and potential errors

ACS element text (the applicant demonstrates understanding of)

Flight instruments as they relate to: a. Instrument limitations and potential errors

Bottom line

In extreme nose-high or nose-low pitch attitudes, as well as high bank angles, the analog attitude indicator has the potential to tumble, rendering it unusable.

Key numbers

Key numbers for a. Instrument limitations and potential errors
NumberWhat it means
north/south turnsCompass lead/lag
below -11 °C or above 49 °CBaro-VNAV limit

FAA references

  1. AFH ch. 9 (p. 9-13) — FAA-H-8083-3C
  2. IFH ch. 7 (p. 7-58) — FAA-H-8083-15B
  3. AFH Glossary (p. G-16) — FAA-H-8083-3C
  4. IPH ch. 4 (p. 4-33) — FAA-H-8083-16B
  5. AFH ch. 5, UPRT Training Core Concepts (p. 5-5) — FAA-H-8083-3C
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